Could anyone tell me why each day I turn on my system (XP Home ED) that my hard drive get's smaller in size. Example: I boot up my hard drive reads 21.05 GB then the next day it says 19.67. I'm not adding any new programs. It seems to be writing something to the hard drive causing it to lowering space on my HD. Could it be the paging file/swap file? My hard drive is formatted to the NTFS..... Thank you!